I am short, obese and in my 40s. After realising I had put on 4.5 stone since my early thirties (and I weighed even less at points in my twenties) I set out to lose the weight. For 4 weeks I've been on 1200 calories and have been great at sticking to it. I am doing 6+ hours of proper exercise a week which means I am letting other important areas of my life slide and struggling to fit everything in. All of this is in the hope of losing 2 pounds per week so I'm not expecting miracles. Things have been going ok and I have been losing, but this week I seem to have put on at least a pound. It all feels like it's for nothing. I know it's only a pound, and I already knew that my metabolism is such that I have to eat a tiny amount in order to lose weight, but how the hell am I putting weight on when I have so much to lose, am sticking to a low cal diet, and doing more exercise than I've ever done? 